Pointer setting mechanism



June 20, 1939. R. FARNHAM ET AL 2,161,515.76

POINTER SETTING MECHANISM.

`Fi1ed sept. 1, 1951 4 sheets-'sheet 1 June zo, 1939.

l. R. FARNHAM ET AL POINTER SETTING MEGHANI SM Filed Sept. l, 1931 4Sheets-Sheet 2 June 20, 1939. 1. R. FARNHAM ET Al. 2,163,376

POINTER SETTING MEGHANISM 4 Sheets-Sheet 3 Filed Sept. l. 1931 fz/Lm jiFarm/zam, jberi J Jaua/z,

June20, 1939. l R FARNHAM El' M- 2,163,376

POINTER SETTING MEHANISM Filed sept. 1, 1951 4 sheets-sheet 4.v

@il l' #1:#

moved by the dispensing of lillA Patented June v20', 1939 UNITED STATESl VPATENT lOFFICE rom'rEn SETTING MECHANISM Ivan R. Farnham and RobertJ. Jauch, Fort Wayne, Ind., assignors, by mesne assignments, to TheWayne Pump Company, Fort Wayne, Ind., a corporation o! MarylandApplication september 1, issnseriamo. 560,568

4 claims.l (cl. azi- 95) predetermined position, by an attendant, and

after the pointer of the indicating means has been each delivery offluid from the apparatus.

'I'he invention further comprehends the idea of providing novel controlmeans for controlling the operation of a power means for delivering uidfrom dispensing apparatus. More particularly, the invention includes theproviding of novel means associated with the indicating means providedin the apparatus which is adapted to render the power means initiallyinoperative except when the indicating means is in abpredeterminedposition.'

Another object of the present invention is to' provide a novel controlmeans for controlling thevinitial operation of a manually operatedswitch 4ant has moved the ndicating'means back to its initial or zeroreading, thereby positively indicating to the individual receiving theuid that .the position of the indicating means at any,\ time correspondswith the number of units of fluid `actually dispensed from theapparatus.

The invention further contemplates the idea of incorporating such novelcontrol means in a iiuid dispensing apparatus having an indicating meansincluding a plurality of pointers, one of which may indicate fractionsof a unit of fluid dispensed by the apparatus, while another pointer mayindicate in u nits the fluid so dispensed.

Still another object of the present invention is to provide a fluiddispensing apparatus including the novel means for resetting a pointeror pointers of the indicating means therefor in. association with acontrol means constructed in accordance wtih the present invention forrendering the power means initially operative only when the pointer orpointers are reset to the initial or zero reading of the indicatingmeans.

Other objects, features, capabilities and advantages are comprehended bythe invention, as will later appear and as are inherently possessedthereby.

Referring to the drawings- Figure 1 is a view in vertical cross sectionof a dispensing device having parts broken away to show in detail anembodiment of the present in# vention )for effecting a' resetting of thedial i pointer;

dispensing apparatus with parts broken away to disclose in detail anembodiment made in accord` ance with the present invention for controlof the power means for dispensing uid; i Figure 5 is a detachedfragmentary view in side elevation similar to Figure 4 and having partsbroken away to disclose in detail anotherembodi ment of a controlmechanism made in accordance with vthe invention for controlling thepower means of the apparatus;

Figure 6 is a view in side elevation of a indieating means of a fluiddispensing apparatus and having parts broken away to disclose in detailIa still further modiiication of a control means made in accordance withthe present invention;

Figure 7 is a view partly in vertical cross section and partly in sideelevation of the dispensing apparatus shown in Figure 6 of the drawingsand taken in a plane substantially represented by the line 1-1 of Figure6 of the drawings;

Figure 8 is a detached fragmentary view in end elevation of a iiuiddispensing apparatus and having/parts broken away to disclose in detaila still n further embodiment for control of the power means of theapparatus;

Figure 9 is a fragmentary View in vertical cross tween the nozzle of theapparatus and control A mechanism made in accordance with the presentinvention; and

- Figure 11' is a View in cross section of a disl' pensing apparatusincorporating control mechanism made in accordance with the presentinvention, this control mechanism being associated the present inventionand for resetting the pointer A 2. of an indicating means 4 provided ina duid dispensing apparatus 6, is disclosed as including a. lever 8pivoted, as at I8, to a. bracket I2 secured by any suitable means to theoutside casing I4 of the fluid dispensing apparatus. The outer end ofthe lever 8 protrudes through a slot I6 provided in the casing orhousing I4 and has an enlarged end portion or knob I8 for convenientgripping by an attendant. `Theinner end of the lever8is looselypivoted,'as at 28, to the lower end of a link 22 which has its upper endconnected to a rack 24` slidable between suitable guide-means 26 of theframe 28 for supporting the indicating means 4. The indicating means 4may comprise a. dial 38 'provided with indicia, such as the numerals 32,

for indicating the units of a uid actually dispensed from this fluid.dispensing apparatus, this dial 38 being supported upon the frame 28which in turn is secured to one or more cross members or supports 34fitting within the housing or casing I4.

Inthe present embodiment, the pointer 2 is supported upon a shaft 36movable or rotatable in accordance with a power means (not disclosed)including a pump for delivering a fluid, such as gasolina-or the like,through a nozzle into a. container, as for example, a gasoline tank ofan automobile. In this embodiment, as `likewise inthe subsequentembodiments disclosed, the dispensing apparatus includes a'hook or othersupporting means for the nozzle which automatically shuts r oi the powerand stops further pumping of the gasoline, or other fluid. The movementof theshaft 36 is so calibrated in relation to the pump as to havemovement between any adjacent numerai provided on the dial 38, tocorrespond t'o a unit of fluid being dispensed from the apparatus. Thepresent invention contemplates the idea of providing means associatedwith th^e shaft 36 and with the previously disclosed rack 24 forreturning the pointer 2 in a counter-clockwise direction from any pointon the dial to the zero or initial reading. Such means in conjunctionwith the rack 24 and its associated mechanism, comprises a hub 38mounted upon the shaft 36 and secured thereto, as by means of a pin 4,8,this hub 38 `having a pinion 42 rotatably mounted thereon and adapted tohave meshing engagement with the rack 24. The pinion 42 is provided witha recessed portion 44 having a cam or wedge surface 46 lfor retaining aball 48 therebetween and the periphery of the hub 38.

In operation, assuming that the pointer 2 is in a position as indicatedin Figure 1 of the drawings, the attendant or operator of the fluiddispensing apparatus, desiring to move the pointer backtothe initial orzero position, moves the knob I8 upwardly, which causes the rack 24 tomove downwardly between the guides 26 into engagement with the pinion42. Upon initial movement of the pinion 42, the ball 481s wedged be-Vtween-the cam or wedge surface 46 and the periphery of the hub 38 foreffecting counter-clockwise movement of the shaft 36, as likewise the.

the dial 38.l Upon release of the knob I8, the rack 24 is returned toits uppermost position by means of the coil spring 58, the pointer 2andshait 36 remaining stationary during such movement of the ball 48*within the recess 44 during clockwise movement of the pinion 42. f

In Figure .2 of the drawings is disclosed a. modicesses 54 for retainingballs 56, each of which is adapted 4to be spring pressed, by the coilspring 58, along the recess 54 and into engagement with the innersurface of a pinion 68 mounted upon the hub 52, this pinion 68 beingadapted to have meshing engagement with a rack, such as the rack 24. Itwill be quite apparent from the drawings that this clutch mechanism isin the nature of a ratchet device whereby movement of the hub 52 in aclockwise direction may be effected without the transfer4 of suchmovement' to the vpinion 68, although, upon rotation in acounter-clockwise direction, the balls 56 become wedged between the hub52 and pinion 68 so that these elements have simultaneous rotary motion.

In Figure 3 of the drawings, 'a still further embodiment of a suitableclutch mechanism for use in conjunction with the device disclosed inFigure 1 of the drawings, is shown as comprising a ratchet wheel 62adapted to be mounted on the shaft 36, a pinion 64 being mounted thereonand having meshing engagement with some such member as the rack 24 whichis adapted to move the same, the pinion 64 having a pin 66 pressed intoengagement with the teeth of the'ratchet 62 by means of the leaf spring68, whereby movement of the pinion 64 in a counter-clockwise directioncauses an counter-clockwise movement of the ratchet wheel 62 and theshaft upon which the same may be mounted.

The present invention further comprehends the idea of providing novelmeans for controlling the operation of a power means adapted to be op-'fied form of clutch mechanism which maybe used L erated in a fluiddispensing apparatus for distributing various quantities of fluidtherefrom, such control means being so associated with theindicatingrmeans provided in the uiddispensing Aapparatus as to permitinitial operation of the power means only when the indicating means isin a predetermined position. A fluid dispensing apparatus lprovided witha.` control means of this kind has a distinct advantage over fluiddispensing apparatuses heretofore constructed, 'in that thiscontrolmeans provides a positive control over the quantity of fluid dispensedto a customer and avoids any possibility of error in such deliveries,either intentionally or accidentally. 'I'he customer receiving thedispensed fluid is always able to determine the quantity received,inasmuchas the indicator necessarily has to be returned to the zeroreading before the power means may be operated. s

Referring more particularly to Figure 4 of the drawings, an embodimentmade in accordance with the present invention and' incorporating thisidea of controlling the power means of the present fluid dispensingapparatus is shown in connection with an apparatus provided with anindicating means including a dial 18 having indicia 12 upon the facethereof and a pointer 'I4 mounted upon the shaft 16 and movable therebyover the face of the dial 18 for indicating the reading before theswitch may again be operated units of fluid dispensed to any particularcustomer at any one time. The dial 10 and shaft 18 are mounted upon aframe 18 supported upon one or more cross members or brackets 80provided within and connected to a housing or casing 82. The fluid isdelivered from a storage tank associated with the dispensingapparatus-through a nozzle into a customers container or receptacle bymeans of a pump operated by an electric motor in an electric circuitcontrolled by Ia switch,

`of the push and pull type, generally designated as 84, and which maybeNsecured to the casing 82 in anydesired manner. The movement of thepointer 14 over the face of the dial 10 is so calibrated and movablewith the power means as to move between adjacent numerals 12 when a unitof fluid has been delivered from the apparatus.

' The switch 84 is operated to complete a circuit for the electric motorby means of the rod 88 connected to the inner arm 81 of a bell cranklever 88 pivoted, a`s at 30, to the bracket 80, the other arm 89 of ,thebell crank 88 having a rod 92 connected thereto.and protruding throughan opening 94 in the casing 82. This rod 92 is provided with a knob 98adapted to be gripped by an operator or attendant for outward movementof the rod, thereby causing rotation of the bell crank lever 88 andmovement of the rod 88 to effect a completion of the electrical circuit.

In order to control the initial movement of the bell crank lever 88, aslikewise the initial operation of the electric motor, the pointer 14 isprovided with a vcam having a cam lobe 88 oppositely disposed theretoand adapted. when the pointer is set at its initial' or zero reading, tocontact with the cam follower of a lever |02 pivoted to the frame 18, asat /|04. This lever |02 is provided at its other end with a slot |08\adapted jto receive a pin |08 of a second bell 40 crank lever ||0pivoted to the support 80, as

As will be quite apparent from the drawings,

the lower arm ||4 ofthe bell crank lever |0 is so constructed as teclearthe end 81 of the bell crank lever 88 when the pointer 14 is at its zeroreading and the cam lobe 98 has contacting en- Y gagement with the camfollower |00. This arrangement permits the initial movement of thebellcrank 88 only when this pointer 14 is in the position as shown inFigure 4 of the drawings. If the pointer 14 were in a position, asforexample, opposite the numeral 2 or 3, the cam lobe 98 would be to theleft of the cam follower |00 and the lever |02 under the action of thecoil spring ||8l would cause a counter-clockwise movement of the bellcrank ||0 and an outward i movement of thearm |4 into the path ofmovement of the end 81 of the bell crank 88, thereby rendering operationof the switch 84 impossible. During the operation of the electricmotor,k after the bell crank lever 88 has beenginitially movedin aclockwise direction, andA the cam lobe 98 has been moved from itsengagement with vthe cam follower 00, theshoulder ||8 of the bell cranklever ||0 is adapted to engage with the y inner end 81 of .the bellcrank lever for holdging the lever |02 in a position as now shown inFigure 4 of the drawings. When the bell crank 88 is again moved foreffecting a disconnection of the switch 84 and into the position asshown in .Figure 4 of the drawings, the arm ||4 of the bell crank lever||0 is automatically moved by the spring ||8 into a position vforengagement with the bell cranklever 88, thereby necessitating themovement of the pointer 14 to its initial or zero with a switch 84controlled through the movement ofthe bell crank lever 88, rod 92 andknob 98. In this embodiment, each of the vpointers and |22 is providedwith cams having cam 'I lobes |24 and |28, these cam lobes being adaptedto have contacting engagement with levers |28 and |30, respectively,associated with a bell crank lever |32, these elements being operable ina similar manner as corresponding elements heretofore described and forthe purpose of controlling the initial operation of the power means.

In Figures l6 and-7, a still further embodiment of the control means ofthe present invention is disclosed in connection with a fluid dispensingapparatus having oppositely disposed dials, such as |34, mounted in thedial supports |38 and |38 secured, as byl means of the screws |40, to aframe` |42 adapted to be positioned within a casing or housing of theapparatus. As in the previously described embodiments, the uid isdispensed from this apparatus by means of an electric motor within acircuit |44 controlled by means of the switch of the push and pull type,generally designated as |48. This motor is operatively associated withva jack shaft |48 having an end journaled in the cross lmember |10 of theframe |42 and adapted, through suitable mechanism,v to cause movement ofthe pointers |50 and |52`over the face of the dials |34, the movement ofthese pointers being calibrated so as to` indicate the number of unitsand fractions ofv units of uid being dispensed from the apparatus.

Each of the pointers |50 indicates the fractions of units delivered bythe apparatus and is provided with a hub 54 mounted upon a shaftl |58supported in suitable bearings provided within the upright portions |58and |80 of the frame |42. 'I'his shaft has a beveled pinion |82rotatably secured thereto and meshing with a beveled pinion |84 providedon the upper end of a jack shaft |88 suitably mounted in the crossmembers |88 and |10 of the frame |42, the lower end of this jack shaft|88 extending downwardly beneath the member |10 and having a gear |12secured thereto and meshing with a pinion |14 The shaft |88 is caused torotate by .rotation of,

the Vshaft |58 through the medium of a. gear |90 having spaced teeth |92and |94 adapted to mesh with the short and long teeth |98 and |88,respectively, of the gear 200 mounted upon the shaft |88.

pon rotation of the shaft |48, the pinion |64 is caused'to rotate fordriving the pinion It will be clearly seen. that for each revolution ofthe pointers |50, the -pointers |52 are adapted to-be' moved through adistance corresponding to the distance between numerals 208.

f The shaft |56 is further provided with a collar 209 having a. camsurface 2|0 over which passes a cani lfollower 2|2 of a trip mechanism2|4 provided with a knob 2|6, this trip mechanism being adapted to bereceived in a notch of the cam surface for allowing the knob 2|6-to besuddenly thrown against the bell provided onl switch |46 is operated tocomplete the circuit |44 through a lever 232 pivoted to a bracket234and' having a rod 236 connected at its upperend which is provided witha-knob 238 exteriorly disposed relative to the casing for the dispensingapparatus, whereby the operator orattendant may control thefswitch |46.The end of rod 236 normally extends into apertures 2'40 'provided in ablock 242 when the switch is in a position tofeifect a completion of thecircuit |44. In order :to control the movement of the. rod 236 wherebythe switch |46 may be initially operated only when the pointers |50 and|52ar e in their initial'orl zero position, as shown in Figure 6 of thedrawings, novel means is provided for controlling the movement of therod Such means includes a locking lever 244 piv-` oted, as at 246, 4to ablock 248 vand a second locking lever 250 likewise"pivoted, as at 252 tothis block 248. The lever 244 is inthe form of a bell crank and has itsarrn 254 pivoted to a linkV 256 having an elongated slot 258 forreception of a pin 260 provided in one end of the bell crank lever 262,the bell crank lever 262 being adapted to contact with a pin 264provided on the hub |16 which also provides a mounting for a dog 266adapted to have .con-- tacting engagement with the cam surface 268provided on a collar 210 secured to the shaft |56 adjacent the spool|16. This dog -266 is normally heldin engagement with the cam surface268 by means of a spring 212.

, When t'he pointers |50 and |52 are in their initial or zero position,as shown in Figure 6 of the drawings, the dog 266 is in engagement witha shoulder 214 provided on the collar 210, this engagement causing thepin 264 to engage with the bell, crank lever 262 for movement of thelink 256 and downward movement ofthe arm 254 of the locking lever 244,whereby the lower arm -216 of this locking lever is moved upwardly outof. alignment with the apertures 240 thereby permitting the rod 236 tobe received therein andffor eifecting operation of the switch |46. The*movement of the pointers |50 and |52 to their zeroor initial reading, aslikewise the movement of the collar 210 and bell crank lever 262 islimited by a pin 218 in the member |56 vin the scribed embodiment.

frame |42 which acts as a stop conning movement of :the lower arm 216 ofthe bell crank lever 244 to movement just suiiicient yto clear theopenings 240.

' Also, the bell crank lever 250 is provided with l.a block 280 whichis' adapted to ride over the cam surface `282 of a collar 264 secured tothe shaft |56, the block 260 being adapted to engage with, a .shoulder286, at substantially the same time that the shoulder 214 engages withthe dog 266, for throwing the lower arm 288 of the bell crank lever 250vto th right, as shown in Figure 'l of the drawings, to also clear theopenings 240,

and to permit reception of the rod 236 in the openings 240, this arm 268being adapted to move into alignment -with these openings 240 when the"In Figures 8 and 9 of'the drawings is disclosed 4 an embodiment quitesimilar to th`e embodiment disclosed in Figures 6 and 7 and forcontrolling the operation of the switch |46 provided within the circuit|44 which also includes therein the electric-motor referred to in thepreviously de- The iluid dispensing device with which this embodiment isdisclosed is similar to the one shown in Figures 6 and 7 and is providedwith the dials |34 having the reference numerals 208 placedthereon andover the face of which pointers l|50 and |52 move. As in the previouslydescribed embodiment, the collar 210 isprovided upon the shaft |56 andhas a shoulder 214 adapted to engage with the dog 266 pressed intocontacting engagement with the surface of the collar 210 b y means ofthe spring 214. The dog 266 is secured to a collar or hub 290,correjsponding with the collar or spool .|16 of the other embodiment, bya pin 292 extending or projecting therefrom and adapted to have engagingContact with the arm 294 of a bell crank lever 286 pivoted, as at 298,to the frame 300. The bell crank lever 296 is limited in itsmovement,when the shoulder 214 is in contact with the dog 266 and thepointers |50 and |52 are 'in their zero or initial position, by theengagement of its outer arm302 with the upper surface ofthe block 304.

- This outer arm 302, when the arm'is in contacting engagement with theblock 304, engages the end of a lever 306 for moving its lower end outof alignment with the aperture 308 adapted to receive the inner end ofthe rod 236 operably associated with the lever 232 for controlling theswitch |46.

`It will be clearly apparent, that when the pointers |50 and |52 are intheir initial or zero read,-

' ing, the lever 306 is out ofV alignment with the opening 308 wherebyinitial operation of the4v switch |46 may be elfected. In this respect,the,

like, through a flexible hose 322 and a manually operated nozzle 324.This motor is within a circuit controlled b y a contact switch 326 whichis operated by initiating means, generally referred 2,163,376 to as 328.Thisvinitiating means includes a rod nected to a contact switch 38.2,for operatingv the oi' the like 330 connected to operate the switch 326at one end and connected at its other end to an arm of a bell cranklever 332 pivotally supported upon a frame member- 334 tting within thecasing 320. The bell crank lever` 332 has a depending leg or arm 336provided with a' rod 338 projecting therefrom whiclr is embraced by vacollar 340 integral withthe arm 342 of a bell crank 344, this bell crankbeing pivoted as at 346 bebeing' normally supported upon -a bracket 352projecting from the casing 320 and in a position whereby the nozzle 324may be supported thereon in its normal inoperative position as show-n inthis gure.

It will be apparent that when thearm 350 is in its uppermost position,lthe rod 330 will be raised for operating the switch 326 and the motorprojecting outwardly from the casing 362, this associated therewith.This-upward position of the arm '350 is its normal position during theoperation of the motor for pumping and dispensing gasoline or a similarfluid. When the nozzle 324 is returned .into the position as shown inthis iigure, the same engages the bifurcated arm 350, and this armisloweredinto the position as shown tomove the bell crank lever 332 androd 33|! to shut oi the motor through the switch 326.

The dispensing apparatus shown in this embodiment likewise includesindicating-means, generallyreferred to as 354, and comprises a dial 356and a pointer 358, this pointer 358 being rnov-- able over ,the face ofthe dial 366 in accordance with thefluid discharge through the nozzle324,

all in Iaccordance with the disclosure in Figure 1.1, hereinafter morefully set out. 'I'he present invention, as in the hereinbefore'described embodiments, comprehends novel control means,

generally referred to as 360, for controlling the operation bf theinitiating means 328 whereby the same is initially operable only whenthe indicating means is in a predetermined position. This control means360 corresponds in all essentials with the same mechanism shown inFigure 4 of the drawings, and can be readily understood by reference toa description o f that igure.

owing through a pipe 310 to the sight gauge 31| and being dispensedthrough the hose 313 and the hand operated nozzle 315'. This nozzle 315is normally supported in its inoperative position as shown in thisgure,.-and upon a. bracket 312 nozzle likewise engaging va hook member314 in the form of a bell crank lever-which projects through a suitableopening in the casing 362 and is pivoted for, movement'as at 316 tobrackets 318 secured to a frame member 380. This bell crank leverhas itsoutwardly extending leg con- The outlet side of the pump 366 is motor364, throughthe rods 384 and 386, the upstanding leg of this bell cranklever in turn being conn'ect'edby-way ofa collar 388 at theend of arocl'39l1. 'r

This dispensing apparatus may be provided with the indicating meansdisclosed in either Figures 7, 8 or 9, andmay have the' structuredisclosed in these iigures for .operating the same.

purpose of this disclosure, thisA mechanism forI operating theindicating means may be generally referred to as 392,;and the rod 390corresponds with either the rod236 of Figures 7 and 8, or rod 308 ofFigure 9 of the drawings. operates a rod 311 corresponding to rod V|48of Figure 7 of the drawings, whereby the indicating For theA The meter369 means 392 may be operated in accordance 'with themeter 369.

It will bereadily appreciated that the hook member 314 can-.be operatedonly when the rod 390 is free to move from right to left, as disclosedin this figure, movement of this rod 390 being controlled as disclosed'in Figures? to,9 inclusive.

` The rod 390 is free to move to the left in Figure 9 only when the.indicating means is at a predetermined position, or in lts zero readingand the nozzle 310l has been moved'from the hook member 314 tosupplyiiuidto a tank,as for example, theA tank ofan automobile'or thelike which has driven up adjacent this dispensing ap paratus. Upwardmovement of the hook member 314 operates the switch 382 through therods384 and 386 yto initiate operatonof the motor and pump fordischarging fluid through the'nozzle 315 when the valve thereof issuitably. operated. After the'` nozzle has been replaced upon thesupport 312, the hook member .314' is moved downwardly to disengage thelswitch 382 and to move the rod 390 to the right, as disclosed in thisiigure.

As inthe embodiment shown in Figures 7 to 9 inclusive, operation ofthe-motor and pump can -be initiated only whenthe nozzle 310 is removedfrom the hook member 314 and the rod 390 is free to move to the left.

While we have herein described and upon the drawings shown illustrativeembodiments of the is not limited thereto but may comprehend otherconstructions, arrangements of parts, details and features' withoutdeparting from Athe spirit of the invention.

We claim:

1. In a uid dispensing apparatus, the comwhereby said circuit isinitially completed and for operation ofsaid motor, indicating means for"determiningquantities of fluid dispensed by said l invention; itis tobe understood that the invention apparatus and means adjacent. saidfirst vnamed member operated by said .indicating means and normallyreleasably held out of alignment with said ap'erturewhen said indicatingmeans is in a predetermined position, said meansl beingfreleased uponmovement of said indicating means for alignment with'saidgaperture torender said switch inoperative-upon removal of said extension from saidaperture and until said indicating means is returned to saidpredetermined position.

2. In a fluid dispensing apparatus, the com" bination of power means, amember having anl aperture therein, said power means l including an -andcontrolled bymovement of said pointers, said means vincluding membersadapted to be held out of alignment with said-aperture for renderingsaid switch initially operable only when saidpointers are in apredetermined position.

3; In a fluid dispensing apparatus or the like, the combination of meansfor discharging quantities of fluid, indicating means operablefor de,

termining the quantities of fluid delivered from said apparatus, meansfor initiating discharge of said fluid, said means including a movablemember, and means associated with said indicating means and movable intoand out of the path of movement of said movable member, saidlast-mentioned means being normally out of 'the path of movement of saidmovable member when said indicating means is in its zero recordingposition whereby said. initiating means may be operated.

4. In a fluid dispensing apparatus or the like,

'the combination of means for discharging guantities of uidqindicatingmeans operable for determining the quantities of Ailuid delivered fromsaid apparatus, means for initiating discharge of said uid, said meansincluding a movable memfber, and means associated with said indicatingmeans movable into and out of the path of move-, ment of said movablemember, said last mentioned means being normally out of the path of movement ofsaid movable member when saidindicating means is in its zerorecording position whereby said initiating means may be operated, saidlast mentioned means being disposed in the path of said movable memberwhen said indicating means is in other than zero position to preventinitiating said second named means until said indicating means has beenmoved to zero position.

IVAN R. FARNHAM. ROBERT J. JAUCH.

